Patent application number | Description | Published |
20090108961 | Electroacoustic Component - An electroacoustic component operates with guided acoustic waves and includes a first substrate, a second substrate, a metallic layer and an intermediate layer. The first substrate (S | 04-30-2009 |
20100134211 | Transversal Filter Operating Using Surface Acoustic Waves - A transversal filter operates using surface acoustic waves and has a piezoelectric substrate and an acoustic track that is arranged on the substrate and in which a first transducer and a second transducer are arranged. Each transducer has electrode fingers. A function, which characterizes the weighting of the overlap length of electrode fingers of different polarity in the second transducer, has a half main lobe and at least one side lobe. The amplitude of the lobes decreases monotonally in a direction that points to the first transducer. | 06-03-2010 |
20100148285 | MEMS Component and Method for Production - A MEMS component includes a chip that has a rear side having a low roughness of less than one tenth of the wavelength at the center frequency of an acoustic wave propagating in the component. Metallic structures for scattering bulk acoustic waves are provided on the rear side of the chip and a material of the metallic structures is acoustically matched to a material of the chip. | 06-17-2010 |
20100187949 | Component with Reduced Temperature Response, and Method for Production - A component has a substrate and a compensation layer. A lower face of the substrate is mechanically firmly connected to the compensation layer. The lower face of the substrate and the upper face of the compensation layer have a topography. | 07-29-2010 |
20100231330 | Component Working with Guided Bulk Acoustic Waves - A component working with guided bulk acoustic waves is disclosed with at least one substrate and a layer system that is connected to this substrate and suitable for wave propagation. The layer system includes a metallization layer, a first dielectric layer, and a second dielectric layer. The velocity of the acoustic wave is greater in the second dielectric layer than in the first dielectric layer. At least one of the dielectric layers contains TeO | 09-16-2010 |
20110037538 | Method for Producing an Electric Component Comprising at Least One Dielectric Layer, and Electric Component Comprising at Least One Dielectric Layer - A method for producing an electric component including a dielectric layer on a substrate, includes the method steps of applying a metallic layer to the substrate and oxidizing the metallic layer to form a dielectric layer, wherein at least one partial region of the metallic layer is fully oxidized through the entire thickness of the layer. | 02-17-2011 |
20110266917 | Guided Bulk Acoustic Wave Device Having Reduced Height and Method for Manufacturing - Guided bulk acoustic wave devices and method for manufacturing guided bulk acoustic wave devices are provided. A guided bulk acoustic wave device includes a resonator structure with a piezoelectric layer, an electrode layer for exciting guided bulk acoustic waves and a wave guide layer. The thickness of the piezoelectric layer is less than or equal to 50 μm. | 11-03-2011 |
20120056507 | Microacoustic Component and Production Method - The microacoustic component has a substrate that has at least one layer (composed of a dielectric or piezoelectric material, and a metallic strip structure. The layer is composed of a dielectric or piezoelectric material and/or the metallic strip structure have/has been produced or can be produced by the atomic layer deposition method. | 03-08-2012 |
20120280595 | Metallization having High Power Compatibility and High Electrical Conductivity - A metallization can be used for components working with acoustic waves. The metallization includes a base having a bottom layer comprising titanium, and an upper layer comprising copper. A top layer of the metallization disposed on the base comprises aluminum. | 11-08-2012 |
20130051588 | Electroacoustic Transducer having Reduced Losses due to Transverse Emission and Improved Performance due to Suppression of Transverse Modes - An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained. | 02-28-2013 |
20140312736 | Electricoacoustic Component with Structured Conductor and Dielectric Layer - An electroacoustic component includes a substrate configured to carry acoustic waves. The electroacoustic component can be a guided bulk acoustic wave (GBAW) device, for example. A structured electric conductive layer is arranged on the substrate and an electrically dielectric layer (for example, aluminum oxide) is also arranged over the substrate. | 10-23-2014 |
Patent application number | Description | Published |
20080252396 | Electroacoustic Component - A component working with guided bulk acoustic waves includes a first substrate, a second substrate, and a layer system between the first and second substrates. The layer system includes a metal layer and a dielectric layer. A ratio of the acoustic impedance of the metal layer to the acoustic impedance of the dielectric layer is greater than or equal to 4.5. | 10-16-2008 |
20080266024 | Component Operated by Guided Acoustic Waves - A component working with guided acoustic waves includes a layer system configured to guide waves in a lateral plane. The layer system includes a piezoelectric layer, electrodes on the piezoelectric layer for exciting the wave, a dielectric layer with an acoustic impedance, and an adjustment layer with an acoustic impedance. A ratio of the acoustic impedance of the adjustment layer to the acoustic impedance of the dielectric layer is greater than 1.5. | 10-30-2008 |
20080292127 | Electroacoustic Component - An electroacoustic component includes a carrier substrate and a piezosubstrate having piezoelectric properties. The electroacoustic component also includes a layer system between the carrier substrate and the piezosubstrate. | 11-27-2008 |
20080297277 | Circuit Working With Acoustic Volume Waves And Component Connected To The Circuit - A circuit for use with bulk acoustic waves includes a first electroacoustic system in a first branch and a second electroacoustic system in a second branch. The first electroacoustic system includes a first resonator and a second resonator that are in series in the first branch, and that are galvanically separated, and acoustically coupled, by a first coupling system. The second electroacoustic system includes a first resonator and a second resonator that are connected in series in the second branch, and that are galvanically separated, and acoustically coupled, by a second coupling system. The first and second electroacoustic systems are acoustically coupled via the first and second coupling systems and/or electrically coupled. | 12-04-2008 |
20090255337 | ROTATING MOTION SENSOR - A rotating motion sensor includes at least one electroacoustic resonator to stimulate a surface acoustic wave. The at least one electroacoustic resonator is configured so that rotation of the at least one electroacoustic resonator about an axis of rotation causes a change in resonance frequency of the at least one electroacoustic resonator. The at least one electroacoustic resonator includes oscillating structures configured to oscillate in a first direction that is a direction of propagation of the surface acoustic wave and/or a second direction that is transverse to the direction of propagation of the surface acoustic wave. | 10-15-2009 |
20100109485 | ELECTROACOUSTIC COMPONENT - An electroacoustic component includes a substrate that includes a quartz single crystal. The quartz single crystal has a first Euler angle λ: −5°≦λ≦5°, a second Euler angle μ, and a third Euler angle θ. A contiguous region of the quartz single crystal has the following vertices P | 05-06-2010 |
20100225201 | Electroacoustic Component - An electroacoustic component that includes a substrate made of monocrystalline LiNbO | 09-09-2010 |